# CVE-2025-15426: jackying H-ui.admin preview.php unrestricted upload

> Remote attackers can upload malicious files via preview.php in H-ui.admin, potentially leading to code execution.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 2 Jan 2026
- **Updated:** 23 Feb 2026
- **Also known as:** GHSA-r356-8ggm-5wj2

## What is CVE-2025-15426?

CVE-2025-15426 is a medium-severity vulnerability in jackying H-ui.admin, published on 2 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was identified in jackying H-ui.admin up to 3.1. This affects an unknown function in the library /lib/webuploader/0.1.5/server/preview.php. The manipulation leads to unrestricted upload. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2025-15426?


## How do I fix CVE-2025-15426?

No fix has been published for CVE-2025-15426 yet. Limit exposure of the affected software until one is available.

## Is CVE-2025-15426 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15426 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-15426 and fix it if it is affected.

What it is: CVE-2025-15426 is a medium-severity vulnerability in jackying H-ui.admin, published on 2 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15426 exists.

Affected product: jackying H-ui.admin. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-15426/ (Markdown: https://insights.sbomify.com/CVE-2025-15426/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-15426
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-15426
- OSV: https://osv.dev/vulnerability/CVE-2025-15426

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-15426/
Summaries are generated and may contain mistakes; the official description above is the record.